Volume 31 Issue 5
Nov 2017
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LIU Peng-Fei, ZHI Xiao-Qi, YANG Bao-Liang, YANG Yang. Specific Kinetic Energy Threshold of Impacting Initiation Covered Explosive B by Six-Prismed Tungsten Fragment[J]. Chinese Journal of High Pressure Physics, 2017, 31(5): 637-642. doi: 10.11858/gywlxb.2017.05.018
Citation: LIU Peng-Fei, ZHI Xiao-Qi, YANG Bao-Liang, YANG Yang. Specific Kinetic Energy Threshold of Impacting Initiation Covered Explosive B by Six-Prismed Tungsten Fragment[J]. Chinese Journal of High Pressure Physics, 2017, 31(5): 637-642. doi: 10.11858/gywlxb.2017.05.018

Specific Kinetic Energy Threshold of Impacting Initiation Covered Explosive B by Six-Prismed Tungsten Fragment

doi: 10.11858/gywlxb.2017.05.018
  • Received Date: 13 Nov 2016
  • Rev Recd Date: 21 Mar 2017
  • To study the specific kinetic energy threshold of impacting initiation covered explosive B by six-prismed tungsten fragment, an experiment of impacting covered explosive B by fragments was designed and carried out.Based on the experiment data, using the Autodyn-3D finite software, simulation models were established and used to calculate the specific kinetic energy threshold of impacting initiation covered explosive B by six-prismed tungsten fragment.Based on the proven simulation, specific kinetic energy threshold of impacting initiation of typical size fragments were calculated by the up-down method, and the related curves were drawn.The specific kinetic energy threshold and velocity threshold were compared in the same circumstance.The results show that the specific kinetic energy thresholds of impacting initiation of experiment is 34.780 MJ/m2 and, with a given charge and shell, fragments with a larger length to diameter ratio will have a higher kinetic energy to initiate the explosive.

     

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